<template>
  <div :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import echarts from "echarts";
require("echarts/theme/macarons"); // echarts theme
import resize from "../mixins/resize";

export default {
  name: "LineChart",
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: "chart"
    },
    width: {
      type: String,
      default: "100%"
    },
    height: {
      type: String,
      default: "350px"
    },
    autoResize: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Object,
      required: true
    }
  },
  data() {
    return {
      chart: null
    };
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        this.setOptions(val);
      }
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart();
    });
  },
  beforeDestroy() {
    if (!this.chart) {
      return;
    }
    this.chart.dispose();
    this.chart = null;
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, "macarons");
      this.setOptions(this.chartData);
    },
    setOptions({ xData, yData, name, title, isShowSolid } = {}) {
      this.chart.setOption({
        title: {
          text: title,
          textStyle: {
            color: "#333"
          },

          left: "40px"
          // top: 'auto' ,
          // right: 'auto' ,
          // bottom: 'auto'
        },

        grid: {
          left: 10,
          right: 10,
          bottom: 30,
          top: 30,
          containLabel: true
        },
        tooltip: {
          trigger: "axis",
          /* axisPointer: {
						type: 'cross'
					}, */
          padding: [5, 10]
        },
        xAxis: {
          data: xData,
          axisLabel: {
            rotate: isShowSolid ? 45 : 0
          },
          axisLine: {
            lineStyle: {
              color: "#333"
            }
          },
          boundaryGap: true
        },
        yAxis: {
          type: "value",
          axisLine: {
            lineStyle: {
              color: "#333"
            }
          }
        },
        dataZoom: [
          {
            type: "inside",
            show: true,
            xAxisIndex: [0],
            start: 1,
            end: 100
          },
          {
            type: "slider",
            show: isShowSolid,
            xAxisIndex: [0],
            handleSize: 20, //滑动条的 左右2个滑动条的大小
            height: 8, //组件高度
            left: 30, //左边的距离
            right: 40, //右边的距离
            bottom: 10, //右边的距离
            handleColor: "#ddd", //h滑动图标的颜色
            handleStyle: {
              borderColor: "#cacaca",
              borderWidth: "1",
              shadowBlur: 2,
              background: "#ddd",
              shadowColor: "#ddd"
            },
            fillerColor: new echarts.graphic.LinearGradient(1, 0, 0, 0, [
              {
                //给颜色Setup渐变色 前面4个参数，给第一个Setup1，第四个Setup0 ，就是水平渐变
                //给第一个Setup0，第四个Setup1，就是垂直渐变
                offset: 0,
                color: "#1eb5e5"
              },
              {
                offset: 1,
                color: "#5ccbb1"
              }
            ]),
            backgroundColor: "#ddd", //两边未选中的滑动条区域的颜色
            showDataShadow: false, //是否显示Data阴影 默认auto
            showDetail: false, //即拖拽时候是否显示详细数值信息 默认true
            handleIcon:
              "M-292,322.2c-3.2,0-6.4-0.6-9.3-1.9c-2.9-1.2-5.4-2.9-7.6-5.1s-3.9-4.8-5.1-7.6c-1.3-3-1.9-6.1-1.9-9.3c0-3.2,0.6-6.4,1.9-9.3c1.2-2.9,2.9-5.4,5.1-7.6s4.8-3.9,7.6-5.1c3-1.3,6.1-1.9,9.3-1.9c3.2,0,6.4,0.6,9.3,1.9c2.9,1.2,5.4,2.9,7.6,5.1s3.9,4.8,5.1,7.6c1.3,3,1.9,6.1,1.9,9.3c0,3.2-0.6,6.4-1.9,9.3c-1.2,2.9-2.9,5.4-5.1,7.6s-4.8,3.9-7.6,5.1C-285.6,321.5-288.8,322.2-292,322.2z",
            filterMode: "filter"
          }
        ],
        series: [
          {
            name: name,
            type: "line",
            data: yData
          }
        ]
      });
    }
  }
};
</script>
